JPS5817360B2 - Air blower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air blower, and particularly relates to a blowing device in which pressurized fluid is injected from a nozzle provided in a radial direction on a rotatable shaft so that the injected liquid has a rotational component, and the reaction causes the shaft to move. Air is blown by the action of fluid vanes formed by a rotating sheet-shaped jet of fluid.

A blower with blades made of such a fluid has been proposed in the past, and when the blower stops rotating, the blades disappear, avoiding problems such as blade strength and vibration, and the blades themselves have a dust-collecting effect. Therefore, it has the functions of dust collection and exhaust gas desulfurization at the same time as blowing air, which is extremely advantageous.

However, in this type of blower using a liquid propeller, the propeller is formed by injecting pressurized water from a pump or other device through the jet holes of a rotating drum driven by an electric motor or the like. The drawback was the complexity required for the drive source.

In consideration of the above points, this invention provides an injection nozzle on the rotating shaft so as to protrude so as to have a component in the rotational direction, and by using only one pump as a driving source, rotation of the rotating shaft and injection can be performed simultaneously. The purpose is to simplify the device and obtain efficient air blowing and dust collection and cleaning effects.

The invention will be explained with reference to the embodiments shown in the figures.

First, FIGS. 1A and 1B are a side view and a top view for explaining the principle of the present invention, in which pressurized liquid 3 is pumped by a pump or the like from a plurality of nozzles 2 provided on a rotatable hollow shaft 1 at a circumferential direction speed. When the fuel is injected so as to have a component, a rotation ω is applied to the shaft 1 due to the reaction caused by the injection.

On the other hand, the opening of the nozzle 2 on the shaft 1 is provided so that the jet flow forms a desired blade shape, and the blades formed by the jet flow exert a blowing action in the direction of the shaft 1 shown by the arrow U due to the rotation ω of the shaft. do.

Furthermore, in the present invention, when the air blowing capacity or dust collection capacity of the one-stage fluid impeller as described above is insufficient, the fluid impeller can be provided with two or more stages of injection nozzles in the axial length direction.

In addition, as shown in Fig. 2a and b, the blowing capacity of the fluid impeller can be supplemented by installing a conventionally used solid impeller 4 mounted on the rotating shaft upstream or downstream of the fluid impeller. where a is centrifugal type and s is axial flow type.

In Figure 3, a slit nozzle is provided directly on the solid blade of an axial impeller or a centrifugal impeller, and the fluid from the pump is injected from the injection nozzle through the rotating shaft 1, and the reaction causes the impeller to rotate. A blower blade is formed by a rotating solid blade 4 and a fluid blade jetted into a plate shape,
Performs ventilation action.

Furthermore, the airflow passing through this impeller is also subjected to the dust-collecting action of the jet stream.

[Brief explanation of the drawing]

Figures 1a and 1b are side views and top views of the structure for explaining the principle of the invention, and Figures 2a, b, and 3 are side views of the structure of different embodiments of the invention. be. In the figure, 1 is a rotating shaft, 2 is an injection nozzle, 3 is a pressurized liquid, and P is a pump.

Claims (1)

[Claims] 1. A shaft that has a hollow part and is rotatable about the central axis, and a shaft that is provided around this shaft and has a circumferential component to inject liquid in a sheet shape to form a fluid vane and to apply rotational force to the shaft. A blower device comprising a plurality of injection nozzles and a pump that pumps the liquid to the injection nozzles through the hollow portion.